import { format } from './format';
import { parse } from './parse';
/**
 * Get the current date/time as a DateTime instance.
 * Inspired by Laravel's `now()` helper.
 *
 * @example
 * ```ts
 * now().toDateString()        // '2024-03-15'
 * now().format('MMMM D, YYYY') // 'March 15, 2024'
 * now().addDays(7).toDateString()
 * now().startOfMonth().toDateString()
 * now().diffInDays(someOtherDate)
 * ```
 */
export declare function now(): DateTime;
declare interface FormatOptions {
  locale?: string
  tz?: string
}
declare type DateInput = Date | string;
/**
 * A fluent DateTime wrapper inspired by Laravel's Carbon.
 *
 * Provides chainable date manipulation, formatting, and comparison
 * with zero external dependencies.
 */
export declare class DateTime {
  constructor(date?: DateInput, formatStr?: string);
  static now(): DateTime;
  static create(year: number, month?: number, day?: number, hour?: number, minute?: number, second?: number): DateTime;
  static fromDate(date: Date): DateTime;
  static parse(dateStr: string, formatStr?: string): DateTime;
  format(formatStr: string, localeOrOptions?: string | FormatOptions): string;
  toDateString(): string;
  toTimeString(): string;
  toDateTimeString(): string;
  toISOString(): string;
  toString(): string;
  get year(): number;
  get month(): number;
  get day(): number;
  get hour(): number;
  get minute(): number;
  get second(): number;
  get dayOfWeek(): number;
  get timestamp(): number;
  setYear(year: number): DateTime;
  setMonth(month: number): DateTime;
  setDay(day: number): DateTime;
  setHour(hour: number): DateTime;
  setMinute(minute: number): DateTime;
  setSecond(second: number): DateTime;
  addSeconds(n: number): DateTime;
  addMinutes(n: number): DateTime;
  addHours(n: number): DateTime;
  addDays(n: number): DateTime;
  addWeeks(n: number): DateTime;
  addMonths(n: number): DateTime;
  addYears(n: number): DateTime;
  subSeconds(n: number): DateTime;
  subMinutes(n: number): DateTime;
  subHours(n: number): DateTime;
  subDays(n: number): DateTime;
  subWeeks(n: number): DateTime;
  subMonths(n: number): DateTime;
  subYears(n: number): DateTime;
  startOfDay(): DateTime;
  endOfDay(): DateTime;
  startOfMonth(): DateTime;
  endOfMonth(): DateTime;
  startOfYear(): DateTime;
  endOfYear(): DateTime;
  isBefore(other: DateTime | Date): boolean;
  isAfter(other: DateTime | Date): boolean;
  isSame(other: DateTime | Date): boolean;
  isSameDay(other: DateTime | Date): boolean;
  isBetween(start: DateTime | Date, end: DateTime | Date): boolean;
  isPast(): boolean;
  isFuture(): boolean;
  isToday(): boolean;
  isLeapYear(): boolean;
  diffInSeconds(other: DateTime | Date): number;
  diffInMinutes(other: DateTime | Date): number;
  diffInHours(other: DateTime | Date): number;
  diffInDays(other: DateTime | Date): number;
  toNativeDate(): Date;
  toJSON(): string;
  valueOf(): number;
}